Sometimes, the choice of index format is governed by economics of a printed book. We suggest that an index format is used that the author would like to see in a reference book. Regardless of one’s ultimate choice of index format, it is sometimes tempting to disregard – even a completed index – to save the cost of printing the extra pages. With the strong growth of personal computers in the home, a suggestion is placing that 50 pages (not uncommon for a large book) of index on CD to include in all book sales. Offer a print out upon request for a print out fee – this can be staple bound, 3-hole punched, etc.